The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 23, 2002

Filed:

Apr. 01, 1999
Applicant:
Inventors:

Tapan Jyoti Chakraborty, West Windsor, NJ (US);

Bradford Gene Van Treuren, Lambertville, NJ (US);

Assignee:

Lucent Technologies Inc., Murrray Hill, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 3/128 ;
U.S. Cl.
CPC ...
G01R 3/128 ;
Abstract

A method and system for testing circuit clusters in a boundary scan environment identifies the circuit clusters and corresponding neighboring boundary scan elements, and generates one or more test vectors to be applied to the cluster under test. The generated test vectors are serialized and input into an identified boundary scan element connected to the cluster being tested in the form of a boundary scan test chain. The output of the applied test vectors is observed from an output of another correspondingly identified boundary scan element connected to the cluster under test. During generation of test vectors a list of faults for detecting by each generated vector is maintained such that the observed output can be used to diagnose faults at the component level within the identified cluster.


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